Graco Airlessco PRO-DUTY Series Repair Manual page 12

Repair
5. Loosely install packing nut into top of
cylinder.
6. Assemble lower piston packing stack.
Install from the bottom of the cylinder
(lips face in). Alternate white and brown
V-packings.
7. Grease both piston rod diameters that
will go through the packings. Gently
guide displacement rod up through pack-
ings. Tap bottom of piston valve as nec-
essary with a leather or plastic hammer.
12
8. Grease o-ring and place on outside
diameter ring groove of the intake valve
housing.
9. Reassemble intake valve placing a new
o-ring inside the intake valve body.
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